Science Topics term usage 2007-05-27

This analysis excludes the activity of search-engine spiders, USGS users, and transactions resulting in errors.

(Table shows only the 40 most frequently chosen terms.)

104	volcanoes
33	geographic information systems (GIS)
31	marine geology
30	earthquakes
13	maps and atlases
13	climate change
12	earthquake occurrences
10	earth structure
10	reports
9	well drilling
9	ground-water flow
9	tsunamis
8	tectonic processes
8	aquatic ecosystems
7	ground water
7	acid deposition
7	water resources
7	water circulation
7	streamflow
6	geologic structure
6	sediment transport
6	sea-floor characteristics
6	side-scan sonar methods
6	natural resource extraction
6	water quality
6	industrial pollution
6	California
6	hazards
6	energy resources
6	real-time monitoring and reporting
6	rocks and deposits
5	aquatic biology
5	map coordinate systems
5	geologic history
5	magnetic field (earth)
5	geography
5	biological and physical processes
5	mining and quarrying
4	ecology
4	water chemistry

Science Topics term usage Sunday, 2007-05-27